Add two declare ... @role(event) end to listener.drl. -W On 11/01/2013, Marco Malziotti <marco.malziotti(a)trs.it&gt; wrote: > Hello > I am a beginner in Drools 5.1.1 and try to listen a event in a packageX > inserted by a rule in another packageY. > I have following 2 drl file : > > ---inserter.drl---- > package packageY > import internal.event.*; > > declare EventItem > @role (event) > end > > rule "insert EventItem" > when > ... > then > EventItem ei = new EventItem(...); > insert(ei); > end > ---------------- > > ---listener.drl--- > package packageX > import internal.event.*; > > rule "listen EventItem temporal constraint" > when > ei: EventItem() > oi: OtherItem(this after ei) > then > System.out.println("Hello word"); > end > ---------------- > > EventItem and OtherItem are defined in 'internal.event' package. > If I run with a StatefulKnowledgeSession configured in 'pseudo clock', > I have following stack trace: > > java.lang.ClassCastException: org.drools.common.DefaultFactHandle > cannot be cast to org.drools.common.EventFactHandle > at > org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedRight(AfterEvaluatorDefinition.java:322) > at > org.drools.rule.VariableRestriction.isAllowedCachedRight(VariableRestriction.java:117) > at > org.drools.rule.VariableConstraint.isAllowedCachedRight(VariableConstraint.java:121) > at > org.drools.common.SingleBetaConstraints.isAllowedCachedRight(SingleBetaConstraints.java:151) > at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:125) > at > org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) > at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145) > at > org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) > at > org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:190) > at > org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:145) > at > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1174) > at > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1123) > at > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:917) > at > org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:251) > ... > > Moving listener.drl in packageY, all works. > I don't know if it is already open a related issue, perhaps the : > https://issues.jboss.org/browse/JBRULES-2774 > Thanks for your attention. > Regards. > > Marco Malziotti > Tecnologie nelle Reti e nei Sistemi T.R.S. S.p.A. > Integration Test Engineer > Tel. + 39 06.87281.407 > Fax. + 39 06.87281.550 > E-mail: marco.malziotti(a)trs.it > > > Tecnologie nelle Reti e nei Sistemi T.R.S. SpA > Via della Bufalotta, 378 - 00139 Roma > Tel +39.06.87.28.1.1 - Fax +39.06.87.28.1.550 > > ------------------------------------------------------- > > Ai sensi del D.Lgs. 196/2003 si precisa che le informazioni contenute in > questo messaggio > sono riservate ed a uso esclusivo del destinatario. Qualora il messaggio in > parola Le > fosse pervenuto per errore, la preghiamo di eliminarlo senza copiarlo e di > non inoltrarlo > a terzi, dandocene gentilmente comunicazione. Grazie. > This message, for the law 196/2003, may contain confidential and/or > privileged information. > If you are not the addressee or authorized to receive this for the > addressee, you must not > use, copy, disclose or take any action based on this message or any > information herein. > If you have received this message in error, please advise the sender > immediately by reply > e-mail and delete this message. Thank you for your cooperation. > > ------------------------------------------------------- > > This message has been scanned for viruses and dangerous content by > MailScanner, and is believed to be clean. > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users